Matthew 15:2-5
"Why do your disciples break the rules handed down by our forefathers? For they do not practice washing their hands when they take their meals."
Luke 11:45-46
Then an expert in the law interrupted Him and said, "Teacher, in saying this you are insulting us, too."
Romans 2:19-24
and if you are sure that you are a guide to the blind, a light to those in darkness,
Romans 14:21
The right thing to do is not to eat meat, or drink wine, or do anything else, that makes your brother stumble.
Hebrews 3:12
See to it, my brothers, that no wicked, unbelieving heart is found in any of you, as shown by your turning away from the ever-living God,